Overconfidence Effect

1995, Pittsburgh, USA. MacArthur Wheeler breaks into a bank for a robbery. But strangely, he acts with his face uncovered… and smells very strong lemon! Easily identified thanks to surveillance cameras, he is arrested the same evening.

So why didn’t Wheeler cover his face like all robbers do?

Wheeler thought having a great idea: lemon juice could serve as invisible ink to write secret messages, therefore it could be used to become invisible to the cameras if he would spray his face.

This piece of news intrigues two psychologists, Daniel Dunning and Justin Kruger: how can people be so sure of themselves when they obviously know nothing?

To find an answer, the two psychologists set up a small experiment. They submit tests (humorist, grammatical, and logical reasoning) to groups of people and then ask them to self-assess. As a result, the people who have failed their tests the most are also those who feel they have done the best.

This is the “Dunning-Kruger effect“, also called the overconfidence effect: when you are not competent in a field, you do not recognize this incompetence and you are even strongly tempted to overestimate your own abilities!

Wheeler the robber, who thought being an expert in becoming invisible, was probably a victim of this psychological bias which can also do damage in other fields. For example, if in the workplace, very self-confident incompetents get promoted instead of competent but more discreet colleagues, this can generate stress, a sense of injustice and demotivation within a team.

In short, it can make relationships between colleagues as acid as lemon!

How many overconfident people have you met?

yellow lemon fruit on yellow surface
Lemon – Photo by Cup of Couple on Pexels.com



Why Saying No To Temptations

How can you resist the temptation to drink a good glass of wine, eat a piece of cake or skip the gym and go to the cinema instead?

“The only way to get rid of temptation is to yield to it” said Oscar Wilde.

Diet, sport, sleeping enough are fine, but sometimes indulging in the breach of the rule helps your psycho-physical well-being and eases the performance anxiety that often accompanies a healthy lifestyle.

However, in addition to giving in to temptations, we can learn to control them.

Have you ever heard of the “Marshmallow test“?

The “Marshmallow test” is a curious experiment, carried out by Professor Walter Mischel in the sixties at Stanford University.

yummy marshmallows heaped on white table
Photo by Arina Krasnikova on Pexels.com

A child is left alone in a room in front of a Marshmallow: they can choose whether to eat it immediately or wait 15 minutes and get two as a reward. Some children will know how to wait; others, unable to resist, will throw themselves on that inviting sugar candy.

The professor compared throughout the years the self-control skills shown by children with the successes achieved in their adult age and found out that those who did not eat the marshmallow achieved more goals in life.

Is self-control therefore the secret of success? Is it postponing rewards really more likely to bring success in life?

The Mischel experiment actually explains how self-control is fundamental in studying, in sport, at work and in many other circumstances of your life.

Self-control means knowing how to make decisions in the right time and in the right place to improve your skills to not yield to the temptation of a marshmallow.

People who are best at mastering their decision-making are generally people who are better off. They eat well, play sports, get enough sleep. These people structure their lives around good habits and build routines that are easy to follow.

Good news are that you can learn new habits.

Eating a piece of pie is not a moral failure, even if you have decided to go on a diet. Giving up on the piece of cake may cause you more stress and therefore cause you more harm than eating it. The trick is rather to avoid buying a cake or passing in front of a cake! But don’t feel guilty if you eat a slice. Don’t forget that an excess of willpower can also be more harmful because, as mentioned before, it can cause additional stress.

Self-control depends on your choices and it is your responsibility. Stress has become a personal burden, which you are called to manage alone with the help of techniques, like meditation, coaching, yoga.

Remember that it is important to recognize your own limits because it makes you become aware of the fact that you cannot be perfect and control everything.

Do you think that you can learn how you can control yourself?

assorted colorful lollipops on pink background
Photo by Karolina Grabowska on Pexels.com